77Piece Car A/C Valve Core Dust & Air Seal Set for R134A Systems Keep your vehicle's air conditioning system sealed, clean, and performing reliably. This 77piece kit is designed specifically for automotive A/C systems that use R134A refrigerant and provides a full complement of valve core dust caps, seals, and replacement pieces to protect valve cores and maintain proper system pressure. Key benefits Prevents leaks and contamination: Protects valve cores from dirt, moisture, and damage that can lead to refrigerant loss and poor A/C performance. Saves time and money: worn or missing caps and seals quickly during routine service or ontheroad repairs, avoiding more costly repairs later. Versatile for service and maintenance: A comprehensive set suitable for professional technicians and DIY maintenance on passenger cars and light vehicles that use R134A. What it does Restores and maintains the air seal around A/C service ports to reduce refrigerant escape and keep contaminants out. Protects valve cores from physical damage and corrosion, extending component life and preserving system integrity. Provides multiple spare parts so you have replacements available during inspections, recharges, or valve servicing. Compatibility and applications Specifically compatible with automotive A/C systems that use R134A refrigerant. Suited for passenger vehicles and lightduty automobiles with standard A/C service ports. Ideal for technicians, maintenance shops, and vehicle owners performing routine A/C checks, recharges, or valve service. Features and attributes Kit size: 77 pieces, providing ample spares for multiple vehicles or repeated service tasks. Functionality: Designed to protect valve cores, maintain air seals, and prevent contamination of the A/C system. Performance: Helps reduce refrigerant loss and maintain consistent A/C system pressure by keeping service ports sealed. Use cases Routine A/C service: old or missing dust caps and seals during an A/C recharge to ensure proper sealing and reduce the risk of leaks. Emergency roadside : Keep the kit in a service toolbox to quickly restore a faulty or missing valve cap and prevent further refrigerant loss until proper service is available. maintenance: Stock a set for inspections and valve service to speed up repairs and ensure reliable sealing after valve core replacement. What you get A 77piece assortment tailored for R134A automotive air conditioning service ports, giving you the parts needed to protect valve cores and maintain an effective air seal. Note Intended for use with automotive A/C systems that use R134A refrigerant. Ensure compatibility with your vehicle's service port type before use.